--- a/browser/themes/shared/customizableui/customizeMode.inc.css
+++ b/browser/themes/shared/customizableui/customizeMode.inc.css
@@ -114,23 +114,23 @@
 }
 
 .customizationmode-button > .box-inherit > .button-menu-dropmarker {
   margin-inline-end: 0;
   padding-inline-end: 0;
   list-style-image: url(chrome://global/skin/icons/arrow-dropdown-16.svg);
 }
 
-.customizationmode-button:-moz-any(:focus,:active,:hover):not([disabled]),
+.customizationmode-button:-moz-any(:active,:hover):not([disabled]),
 .customizationmode-button[open],
 .customizationmode-button[checked] {
   background-color: #e1e1e5;
 }
 
-#customization-done-button:-moz-any(:focus,:active,:hover):not([disabled]) {
+#customization-done-button:-moz-any(:active,:hover):not([disabled]) {
   background-color: #0060df;
 }
 
 .customizationmode-button[disabled="true"] {
   opacity: .5;
 }
 
 %ifdef XP_WIN